Home / 3,621.16-5,428.14-2,158.12

Finding the Fourth Proportional to 3,621.16, 5,428.14 and 2,158.12

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Solution

The fourth proportional to 3,621.16, 5,428.14 and 2,158.12 is: 3,235.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.16 : 5,428.14 = 2,158.12 : x
  2. Step 2: Convert to fraction form
    3,621.16/5,428.14 = 2,158.12/x
  3. Step 3: Cross multiply
    3,621.16x = 5,428.14 × 2,158.12
  4. Step 4: Simplify right side
    3,621.16x = 11,714,577.50
  5. Step 5: Solve for x
    x = 11,714,577.50/3,621.16
  6. Step 6: Final answer
    x = 3,235.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.